SAC:Debian System Administration

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Take this as a start and try to migrate related content here

Upgrading OSGeo Debian6 (Squeeze) VM's to Debian7 (Wheezy)

NOTE

Some of the "aptitude"-commands suggest removal of numerous packages.

Do not accept these suggestions but instead ask Aptitude for better ones, which, in most cases, replace removal of a package by upgrading.

If you can't avoid removing packages - installing/upgrading "apt-transport-https" doesn't work without - , then make sure you understand which ones are being removed. Make a note and check, which ones require later re-installation (apt-listchanges) and which ones are obsolete.

Procedure

  • First, make sure required Debian keys are in place to pull package lists

~# aptitude install debian-archive-keyring

  • Upgrade basic foundation to prevent later version mismatches

~# aptitude install libc6 dpkg locales locales-all

  • Be future-proof, will upgrade quite a few dependencies

~# aptitude install apt apt-transport-https

  • These may get lost when introducing "apt-transport-https"

~# aptitude install aptitude apt-listchanges libapt-pkg-perl python-apt

  • Finally, upgrade

~# aptitude dist-upgrade

Extra

Trac

  • It is not mandatory to upgrade Trac, but we need to make it available to the default Python. Unpack current Trac stable release into temp directory and install:

/tmp/Trac-1.2.2# python ./setup.py install --prefix=/usr/local

/tmp/tracldapemailresolverplugin# python setup.py install
/tmp/tracstats-master# python setup.py install
/tmp/spam-filter# python setup.py install
/tmp/spam-filter/Doxygen# python setup.py install
/tmp/sectioneditplugin/1.2# python setup.py install
/tmp/sectioneditplugin/tocmacro/0.11# python setup.py install

PostgreSQL

  • While we're at it, upgrading PostgreSQL is usually a good idea as long as PostGIS isn't being used

~# aptitude install postgresql-10 postgresql-client-10 postgresql-contrib
~# pg_dropcluster --stop 10 main
~# pg_upgradecluster 9.5 main

Misc

  • Not directly related to the upgrade, but required to let "awstats" read Apache log files (unless someone messes with their permissions):

~# adduser www-data adm

Cleanup

  • Remove python2.5, libdb4.8 and related packages.

Remove /usr/local/lib/python2.5/

  • Check for old GCC packages as well as packages containing "squeeze" in the version tag and remove appropriately.
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